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Single Line Nested For Loops
...hension (here (x,y)):
>>> [(x, y) for x in [1,2,3] for y in [3,1,4] if x != y]
[(1, 3), (1, 4), (2, 3), (2, 1), (2, 4), (3, 1), (3, 4)]
It's exactly the same as this nested for loop (and, as the tutorial says, note how the order of for and if are the same).
>>> combs = []
>&...
What is the difference between gsub and sub methods for Ruby Strings
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4 Answers
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Active
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What does Connect.js methodOverride do?
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147
If you want to simulate DELETE and PUT, methodOverride is for that.
If you pass in the _method...
How can you hide database output in Rails console?
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Soviut
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answered Jul 16 '13 at 11:53
Aaron B. Russel...
Determine if ActiveRecord Object is New
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374
An ActiveRecord object lifecycle:
1.new record
item = Item.new
item.new_record? #=> true
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What is for Python what 'explode' is for PHP?
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edited Jan 15 '14 at 13:34
answered Oct 4 '10 at 11:40
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Select DISTINCT individual columns in django?
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Left align and right align within div in Bootstrap
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2018 Update...
Bootstrap 4.1+
pull-right is now float-right
text-right is the same as 3.x, and works for inline elements
both float-* and text-* are responsive for different alignment at different widths (ie: float-sm-right)
The flexbox utils (eg...